linux-toradex.git/drivers/power/power_supply_core.c, branch v3.0.89

power_supply: Initialize changed_work before calling device_add

2011-02-22T10:01:42+00:00

Calling device_add causes an inital uevent for that device to be generated.
The power_supply uevent function calls the drivers get_property function,
which might causes the driver to update its state, which again might
causes the driver to call power_supply_changed(). Since the power_supplys
changed_work has not been initialized at this point the behavior is
undefined and can result in an OOPS.

This patch fixes the issue by initializing the power_supplys changed_work
prior to adding the power_supplys device to the device tree.

Reported-by: Grazvydas Ignotas 
Signed-off-by: Lars-Peter Clausen 
Tested-by: Grazvydas Ignotas

power_supply: Don't use flush_scheduled_work()

2010-12-21T23:39:56+00:00

flush_scheduled_work() is deprecated and scheduled to be removed.

In battery drivers, the work can be canceled on probe failure and
removal and should be flushed on suspend.  Replace
flush_scheduled_work() usages with direct cancels and flushes.

Signed-off-by: Tejun Heo 
Signed-off-by: Anton Vorontsov

power_supply: Fix use after free and memory leak

2010-12-21T23:39:55+00:00

device_unregister() might free its argument.  This leads to freed
memory use in kfree().  Also use put_device() instead of kfree()
as dev may be already used in another layer after call to device_add().

Signed-off-by: Vasiliy Kulikov 
Signed-off-by: Anton Vorontsov

power_supply: Use attribute groups

2010-05-19T08:14:28+00:00

This fixes a race between power supply device and initial
attributes creation, plus makes it possible to implement
writable properties.

[Daniel Mack - removed superflous return statement
 and dropped .mode attribute from POWER_SUPPLY_ATTR]

Suggested-by: Greg KH 
Suggested-by: Kay Sievers 
Signed-off-by: Anton Vorontsov 
Tested-by: Daniel Mack

power_supply: get_by_name and set_charged functionality

2009-07-30T13:49:15+00:00

This adds a function that indicates that a battery is fully charged.
It also includes functions to get a power_supply device from the class
of registered devices by name reference. These can be used to find a
specific battery to call power_supply_set_battery_charged() on.

Some battery drivers might need this information to calibrate
themselves.

Signed-off-by: Daniel Mack 
Cc: Ian Molton 
Cc: Anton Vorontsov 
Cc: Matt Reimer 
Signed-off-by: Anton Vorontsov

power_supply: EXPORT_SYMBOL cleanups

2009-07-30T13:49:00+00:00

While I'm at it, cleanup the power supply code so that EXPORT_SYMBOL_GPL
appears directly after the symbole declaration. checkpatch.pl wants it
that way.

Signed-off-by: Daniel Mack 
Cc: Ian Molton 
Cc: Matt Reimer 
Signed-off-by: Anton Vorontsov

Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

2008-10-18T16:28:24+00:00

Conflicts:

	drivers/power/Makefile

device create: misc: convert device_create_drvdata to device_create

2008-10-16T16:24:43+00:00

Now that device_create() has been audited, rename things back to the
original call to be sane.

Signed-off-by: Greg Kroah-Hartman

power_supply: Add function to return system-wide power state

2008-08-31T22:42:54+00:00

Certain drivers benefit from knowing whether the system is on ac or
battery, for instance when determining which backlight registers to
read. This adds a simple call to determine whether there's an online
power supply other than any batteries.

Signed-off-by: Matthew Garrett 
Signed-off-by: Anton Vorontsov

Driver Core: add ability for class_for_each_device to start in middle of list

2008-07-22T04:54:47+00:00

This mirrors the functionality that driver_for_each_device has as well.

We add a start variable, and all callers of the function are fixed up at
the same time.

The block layer will be using this new functionality in a follow-on
patch.


Cc: Kay Sievers 
Signed-off-by: Greg Kroah-Hartman